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The Remarkable Central Structure of the Barred Galaxy NGC 1415

J. A. Garcia-Barreto·E. Moreno
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Abstract

A remarkable structure is observed in the innermost regions of the barred galaxy NGC 1415 : a small stellar bar, bright circumnuclear ionized gas seen in Halpha, two bright ionized gas sources, seen in Halpha, just beyond the ends of the small bar and a boxy distribution of optical continuum. We have developed a mass distribution model consisting in disk, a bulge, and a bar to approximate t he observed central morphology and its surface brightness. In order to reproduce the observed optical brightness distribution a two-component bar was used, with one component to model the elongated isophotes of the bar and the second component to model the boxy-shaped isophotes. We interpret the circumnuclear ionized gas as forming a circumnuclear ring and the two bright sources as a nuclear and/or circumnuclear outflow slightly out of the plane of the disk.

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J. A. Garcia-Barreto, E. Moreno. 1999-09-23. The Remarkable Central Structure of the Barred Galaxy NGC 1415. https://doi.org/10.1086/308316

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